References for 1 Kings 21:12

13
Then two scoundrels came and sat opposite him and brought charges against Naboth before the people, saying, "Naboth has cursed both God and the king." So they took him outside the city and stoned him to death.4

References for 1 Kings 21:13

14
Then they sent word to Jezebel: "Naboth has been stoned and is dead."

15
As soon as Jezebel heard that Naboth had been stoned to death, she said to Ahab, "Get up and take possession of the vineyard5 of Naboth the Jezreelite that he refused to sell you. He is no longer alive, but dead."